Internal-combustion engine.



H. L. F. TREBERT. INTERNAL GOMBUSTION ENGINE. APPLIUATION FILED MAR.z7,19os.

w Patented Jan. 3, 1911.

l 3 SHBETSSH'EET `1.

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H. L. F TREBBRT. INTERNAL COMBUSTION ENGI APPLIOATIQN FILED MAR. 27

Patented Jan. 3, 1911.

3 SHEETFSHEET 2.

H. L. RTREBERT. 'INTERNAL GOMBUSTION BNGI APPLIUATION FILED 11.52.27

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Patented' Jan. 3, 1911.

3 SHEETS-SHEET 3.'

HENRY L. F. TREBERT, OF ROCHESTER, NEW YORK.

N'TEBNAL-COMBUSTION ENGINE.

Specification of Letters Patent. Patented Jan. 3, 1.911.

Application filed March 27, 1908. Serial No. 423,495.

To all whom 'it may concern:

Be it known that HENRY L. F. TREBERT, of Rochester, in the county of Monroe and State ofNew York, have invented a certain new and useful Internal-Combustion Engine, of which the following is a specification.

My resent invention relates to engines and it has' for its object to providean internal'combustion engine which is particularly sim le of construction and eicient and durabiie in use, havin regard to general fea.- tuies of engine bui ding /favorable to these en s.v A y Withv this 'and' other objects' in 'viewy the inventionconsists in' certain improvements and combinations'of arts all as will be 'hereinafter described, t `e novel features loe,v

ing' pointed out in the claims atA the end of this specification.

' In' describing had to the accompanying drawing in which like characters designate correspondingparts in all the views. D

Figure 1 is a side elevation of my engine artly broken away and partly in section.

ig. 2 i'sa transverse sectional view thereof. Fig. 3 is a top plan'of a pair of cylinders.` Fig. 4 is a detail view showing the pump. The illustrated embodiment of myy inven-4 tion comprises a four-cylinder engine havingv jacketedcylinders cast in pairs, the jackets being` rounding at their ends, conforming to the contour of the cylinders, and the central,

portions thereof being fiat. ,l r.

1 is the 'crankfcase whichfmay be of any desirable form, size and construction.

2 arethe cylinders 'mounted on the crankcase.

3 are water-jackets cast 'integral with the cylinders.

4 is the crank-shaft journaled in the crank-v case.

5 are pistons movable in the cylinders and connected by pitmen 6 tothe crank-shaft,

7 and 8 are, respectively, inlet and exhaust Yports located within the jacket 3 'and formed integral therewith, said ports havingl (sub,-l

stantially" upright portions. formed with,

valve seats 9, and outwardly-extending portions uniting iii singleconduits 7 an 8' whichI open through the sides of thejacket 3 and are connected, respectively, to inlet and exhaust pipes' 10-an'd 11. 12 and 13 ,are

valves movablev into and outI ofengagement.4

With'said seats 9.

As best seen in Figs. 2 and?)l` the inletthis invention, reference is' and exhaust ports and .the valves therein of each pair of cylinders are grouped between the cylinders, the inlet and exhaust ports of each cylinder being located on opposite sides ofthe vertical plane (indicated 1n -Eig. 3 by line 14) in which are located the axes of the crank-shaftend ythe cylinder, and the inlet and exhaust ports of either cylinder withrespect to those of the lother cylinder being located. at one sideA of the plane (indicated vby line 15)..extending about midway between the cylinders: and -inter -secting the Aiirst-mentioned plane (indicated by line 14) at a right angle. Also arranged in theA planes indicated by line 1-5 are artitionl members 0 1 wallsforty-ve that ivide th`e crank-case `1 (which may be' said to be common to all the cylinders) into individual crank compartmentsfor each cylinder and these partitions also vpreferably form-bearing supports for the crank shaft/4:l

16 is thecam-shaft which is-,located in kthe base of the crank-case beneath the crank-shaft, and preferably also journaled in the partitions 45 being connected to the crank-shaft by jinterrneshing `gears I17, 18 mounted, respectively, onwsaid shafts,'the axis of the. camshaft being located in the vertical plane (indicated in Fig. 3 by line 14) in which 4the axes ofthe crank-shaft and the cylinders are located but on the opposite side of the crank shaft from that of the cylindersfor purposes thatv will hereinafter appear.

The connections between the cam-shaft and the inlet and exhaust valves comprise parts or rods 19, 20 located on opposite sides of the engineV andextending through the jacket 3 of the cylinders, these rods bein connected at their u per ends to; the va ves 12, 13,- 'respective vand at 'their lower ends which come on opposite sides of. fthev axis of the crank shaftv to roclnarms 21, 2.2, are pivoted at their ends at 23, 24,

to the opposite linner sides ofthe crank case,to extend'crosswise ofthe cam-shaft 16 and engage, respectively,l"cams 25, 26, thereon. `These rods are movedV in one direction by the cams 25,- 26 acting on rock arms 21 22, and in the other directionby' springs 27 located in the crank-case and-bearmg against the top plate 28= -of the crank-case and v.against 'shoulders 29 on said rods.

As clearly shown infFi'grlthe grouping ',Lof the valve seats between the cylinders .brings the pairs of valvestcms for` each on t opposite sides of but of .the latter,

CQPY

adjacent to the crankcase partitions 45. This necessarily brings the cams 2122 to a similar positlon and as brought very close-to the bearings which is desirable in that a relatively light cam shaft may be employed that will still be rigidly braced ,agamst itsA worl ing the camshaft below the crank sha t, as previously described, it

it -is utilized for operating both the' series of intake and the serles of exhaust. valves arranged, respectively, on

opposite sides of the continuous shaft may crank compartments.

is the timer whichis here shown as carried on a shaft 31 extending obliquely upwardly relatively to the axes of the cylinders, and outwardly through a side of the crank-case in which it is plane 14`l4" and a beused for all of the similar gear 33 on the crank-shaft. The lower-"end of the shaft upon whiclimost of the strainA falls is therefore well lubricated by oil in the bottom of the crank-case while the timei` is rendered more accessible, particularlvwhen the engine is installed .in the i hol of a motor boat.

34'is 'an oil conduit arranged in the crankcase-1 substantially parallel to the crankshaft 4, and provided with jets or nozzles 35 directed obliquely upwardly toward the cranks of said shaft 4 in order that the jets of oil vejected therefrom may strike the cranks of the' crank-shaft 4,' when said cranks are approaching their highest position and splash some of the oill into the cylinders. As here shown,

to the conduit34 from the base ofthe crankcase (which ,serves asia lubricating `oil reser-.

Voir) by a rotary pumprmounted on? the camshaft 16. '-'Sjaid pumpconsists of'a casing 36 non-rotatably mounted on the cam-shaft and a piston 37 rotatable-with the cam-shaft Within the casing 36,l This casing 36 is formed with a downwardly-extending inlet pipe 38 which terminates close-cto the bottom of the crank-case. Thep'ston 37 consists of a diskt eccentrically mounted'on the cam-shaft 16,

the highest point thereof ,engaging the annular inner wall of the casing. nient or blade 39is through the peripheral wall of the casing into the piston chamber thereof, and the end of said abutmentl39 engagesv the-periphery of the piston disk-37.

outwardly by the piston disk'37.- Said'oil conduit34 is connectedv tothe casing 36 of the pump by a pipe 4l'.

A suitable gage 42 is located exteriorly,

and at one end,fof the is out of the way j l cam sha ft the oil is suppliedI movable reciprocally A rfhisiabutment 39 is, moved inwardly by springs 4U and is moved crank-case l, this gage municating with the conduit 34 and its other end' having an outlet through a pipe 43. .By the means just described, the engine can be lubricated with a small amount of oil in the crank-case, and

it will be noted that the parts thereof are simple in their construction and arranofeton, a connectlng rod, a crank shaft in the' valve operating in the plane of the and of the 'cylinder adjacent the bottom ofthe crank-case, the bein arranged between the cam shaft and cylin er and a lubricating device mounted on the cam shaft to draw oil -from crank-case and valves, of a 2. Thecombination with an engine having a cylinder,v a iston, a connecting rod, a crank shaft an valves,'of a valve operating arranged in the plane of the axis of the crank shaft and '4 crank shaft being arranged between the cam shaft and cylinder'.A

3. The combination with an engine having a crank-case, a piston, a. connecting rod, a crank shaft in. the crank-case cam shaft.and cyllnder an a journaled in the bottom of the crank-case and driven by the cam shaft.

4.. The combination with an engine having a cylinder, a fluid holding crank-case, a pison, a connecting rod, a crank shaft in the crank-case and valves, of lveoperating cam shaft arranged in the plane of the axis adjacent the bottom ofthe crank-case, the

ft being arranged between the cam shaft and` cylinder and a lubricating device mounted on the vcam shaft within the crankc ase. 4

5.A In anvengin'e, the combination with a having one end cominto the crank-case' 'cylinder,1apiston,a connecting rod, a pair 4.of valves having stems and a crank shaft arranged between the valve stems, of a valve I vloperating camshaft arranged in the plane l nected with the valve stems.

of the axis'ofthe cylinder andof the crank shaft and on the opposite side of the latter from that of the vcylinder and driving connections between the cam shaft and valves.

Ain an engine, the combination with a cylinder, a crank case, a'piston, a connecting rod, a pair ot valves having stems projecting into the crank case and a crank shaft arranged between the valve stems, of a valve operating camshaftarranged in the crank case in the plane of the vaxis of the cylinder and of the crankshaft and on the opposite side ot the latter from the cylinder and driving connections between the cam shaft and valves comprising arms pivoted to ,the side of the crank-case and vibrated by'the cam shaft, said arms being operatively con- 7. The combination with a multiple cylinder engine having crank-case compartments .for each cylinder; of a continuous valve operating cam shaft extending through .Y all of said crank-case compartments in the plane ot. the axes vof the cylinders and crank shaft, the latter being arranged between the cam shaft and cylinders.

8. The combination with a multiplecyl- `inder engine having two adjacent cylinders and crank compartments, the latter separated b ,a wall or. partition, of v alves for both cy inders grouped in pairs between the outwardly-extending portions at their lower' ends opening through the sides ofthe jacket, the inlet and exhaust ports of the pair of cylinders being grouped together between said cylinders, and the inlet and 'exhaust ports of each cylinder being located on opposite sides of the vertical plane in which are located the axes of the crank-shaft and the cylinders, pistons movable in the cylinders and connected .to the crank-shaft, valves.

vin said ports, a cam-shaft in the crank-case located below the crank-shaft, the cam-shaft being vconnected to the crank-shaft, and connections between the valves and the camshaft, including rods connected at their upper ends to thev valves and attheir lower ends to the cam-shaft, substantially as and for the purpose setforth.

10. In an internal-combustion engine, a

crank-case and having its axis located in v said plane, the cam-shaftbeing connected to the crank-shaft, connections between the valves and the cam-shaft, comprising parts arrangedv on oppositesides of said plane and connected to the valves and to the cam-shaft, 'a timer, and connections between the timer and the cam-shaft, including a shaft connected at one end to the cam-shaft and at its other end to the timer, said shaft being arranged obliquely relatively to the axis of the cylinder, substantially asiand for the purpose described.

11. The combination with a mult-iple cylinder engine having two adjacent cylinders and crank compartments, the latter separated by a wall or partition and a crank shaft, of ,valves fonboth cylinders grouped- 'in pairs between the latter, said valves having stems arranged in pairs, one pair for each cylinder, the units of each pair being respectively arranged on oppositesid'es of and adjacent to the crank compartment artition, a cam shaft extending through oth crank compartmentsin a plane common to the axis of the crankshaft and cylinders, the crank shaft being between the cam shaft and cylinders, and devices operated by the cam shaft for actuating the valve stems.

In testimony whereof, I have hereunto signed my name inthe-presence of (two attesting witnesses, at- Rocfhester', inthe county of Monroe, in the State of New York, this 11th day of January, 1908.

HENRY L. F. TREBERT.

Y Witnesses F. J DECKER, M. C. FUHRMANN. 

